42431143031 has 2 divisors, whose sum is σ = 42431143032. Its totient is φ = 42431143030.

The previous prime is 42431143009. The next prime is 42431143037. The reversal of 42431143031 is 13034113424.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42431143031 - 2¹⁸ = 42430880887 is a prime.

It is a super-2 number, since 2×42431143031² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42431143037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21215571515 + 21215571516.

It is an arithmetic number, because the mean of its divisors is an integer number (21215571516).

Almost surely, 2^42431143031 is an apocalyptic number.

42431143031 is a deficient number, since it is larger than the sum of its proper divisors (1).

42431143031 is an equidigital number, since it uses as much as digits as its factorization.

42431143031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 42431143031 its reverse (13034113424), we get a palindrome (55465256455).

The spelling of 42431143031 in words is "forty-two billion, four hundred thirty-one million, one hundred forty-three thousand, thirty-one".